Jump to main content
Jump to site search

Issue 17, 2013
Previous Article Next Article

Co3O4–carbon nanotube heterostructures with bead-on-string architecture for enhanced lithium storage performance

Author affiliations

Abstract

In this report, alkylcarboxyl group-decorated carbon nanotubes (CNTs) with clustered functionalization patterns are achieved based on a modified Birch reduction in liquid ammonia. By using these functional CNTs (f-CNTs), a new type of Co3O4–CNT heterostructure is prepared via a simple hydrothermal method. SEM and TEM analyses reveal that the as-synthesized Co3O4–CNT heterostructures exhibit bead-on-string architecture, in which the Co3O4 spheres are threaded with CNTs. A possible growth mechanism is proposed to explain the formation of these Co3O4–CNT heterostructures. The electrochemical properties of the Co3O4–CNT heterostructures as anode materials for lithium ion batteries are investigated. The Co3O4–CNT heterostructures display high electrochemical activity, good cycle stability and improved rate performance. Such a large improvement of the electrochemical performance can be related to the robust necklace-like architectures which possess properties such as high mechanical stability, excellent electric conductivity and good strain accommodation.

Graphical abstract: Co3O4–carbon nanotube heterostructures with bead-on-string architecture for enhanced lithium storage performance

Back to tab navigation

Supplementary files

Publication details

The article was received on 16 May 2013, accepted on 19 Jun 2013 and first published on 20 Jun 2013


Article type: Paper
DOI: 10.1039/C3NR02538A
Citation: Nanoscale, 2013,5, 8067-8072
  •   Request permissions

    Co3O4–carbon nanotube heterostructures with bead-on-string architecture for enhanced lithium storage performance

    M. Xu, F. Wang, Y. Zhang, S. Yang, M. Zhao and X. Song, Nanoscale, 2013, 5, 8067
    DOI: 10.1039/C3NR02538A

Search articles by author

Spotlight

Advertisements